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Finding the Fourth Proportional to 9,817, 13,547.57 and 5,340.76

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Solution

The fourth proportional to 9,817, 13,547.57 and 5,340.76 is: 7,370.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,817 : 13,547.57 = 5,340.76 : x
  2. Step 2: Convert to fraction form
    9,817/13,547.57 = 5,340.76/x
  3. Step 3: Cross multiply
    9,817x = 13,547.57 × 5,340.76
  4. Step 4: Simplify right side
    9,817x = 72,354,319.95
  5. Step 5: Solve for x
    x = 72,354,319.95/9,817
  6. Step 6: Final answer
    x = 7,370.31

Related Problems

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Half scale
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Double scale
Find fourth proportional to 9,818, 13,548.95 and 5,341.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.