Home / 12,337.04-17,030.08-8,155.28

Finding the Fourth Proportional to 12,337.04, 17,030.08 and 8,155.28

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Solution

The fourth proportional to 12,337.04, 17,030.08 and 8,155.28 is: 11,257.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,337.04 : 17,030.08 = 8,155.28 : x
  2. Step 2: Convert to fraction form
    12,337.04/17,030.08 = 8,155.28/x
  3. Step 3: Cross multiply
    12,337.04x = 17,030.08 × 8,155.28
  4. Step 4: Simplify right side
    12,337.04x = 138,885,070.82
  5. Step 5: Solve for x
    x = 138,885,070.82/12,337.04
  6. Step 6: Final answer
    x = 11,257.57

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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.