Home / 10,386.20-14,332.91-6,407.30

Finding the Fourth Proportional to 10,386.20, 14,332.91 and 6,407.30

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Solution

The fourth proportional to 10,386.20, 14,332.91 and 6,407.30 is: 8,842.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.20 : 14,332.91 = 6,407.30 : x
  2. Step 2: Convert to fraction form
    10,386.20/14,332.91 = 6,407.30/x
  3. Step 3: Cross multiply
    10,386.20x = 14,332.91 × 6,407.30
  4. Step 4: Simplify right side
    10,386.20x = 91,835,258.04
  5. Step 5: Solve for x
    x = 91,835,258.04/10,386.20
  6. Step 6: Final answer
    x = 8,842.04

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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.