Home / 10,832.40-14,959.08-7,117.20

Finding the Fourth Proportional to 10,832.40, 14,959.08 and 7,117.20

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Solution

The fourth proportional to 10,832.40, 14,959.08 and 7,117.20 is: 9,828.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,832.40 : 14,959.08 = 7,117.20 : x
  2. Step 2: Convert to fraction form
    10,832.40/14,959.08 = 7,117.20/x
  3. Step 3: Cross multiply
    10,832.40x = 14,959.08 × 7,117.20
  4. Step 4: Simplify right side
    10,832.40x = 106,466,764.18
  5. Step 5: Solve for x
    x = 106,466,764.18/10,832.40
  6. Step 6: Final answer
    x = 9,828.55

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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.