Home / 9,817.20-13,547.81-5,340.89

Finding the Fourth Proportional to 9,817.20, 13,547.81 and 5,340.89

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Solution

The fourth proportional to 9,817.20, 13,547.81 and 5,340.89 is: 7,370.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,817.20 : 13,547.81 = 5,340.89 : x
  2. Step 2: Convert to fraction form
    9,817.20/13,547.81 = 5,340.89/x
  3. Step 3: Cross multiply
    9,817.20x = 13,547.81 × 5,340.89
  4. Step 4: Simplify right side
    9,817.20x = 72,357,303.92
  5. Step 5: Solve for x
    x = 72,357,303.92/9,817.20
  6. Step 6: Final answer
    x = 7,370.46

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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.