Home / 12,864.60-17,752.95-7,199.25

Finding the Fourth Proportional to 12,864.60, 17,752.95 and 7,199.25

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Solution

The fourth proportional to 12,864.60, 17,752.95 and 7,199.25 is: 9,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.60 : 17,752.95 = 7,199.25 : x
  2. Step 2: Convert to fraction form
    12,864.60/17,752.95 = 7,199.25/x
  3. Step 3: Cross multiply
    12,864.60x = 17,752.95 × 7,199.25
  4. Step 4: Simplify right side
    12,864.60x = 127,807,925.29
  5. Step 5: Solve for x
    x = 127,807,925.29/12,864.60
  6. Step 6: Final answer
    x = 9,934.85

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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.