Home / 9,116.47-12,580.08-5,339.41

Finding the Fourth Proportional to 9,116.47, 12,580.08 and 5,339.41

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Solution

The fourth proportional to 9,116.47, 12,580.08 and 5,339.41 is: 7,368.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,116.47 : 12,580.08 = 5,339.41 : x
  2. Step 2: Convert to fraction form
    9,116.47/12,580.08 = 5,339.41/x
  3. Step 3: Cross multiply
    9,116.47x = 12,580.08 × 5,339.41
  4. Step 4: Simplify right side
    9,116.47x = 67,170,204.95
  5. Step 5: Solve for x
    x = 67,170,204.95/9,116.47
  6. Step 6: Final answer
    x = 7,368.01

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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.