Home / 15,327.52-21,159.84-9,041.92

Finding the Fourth Proportional to 15,327.52, 21,159.84 and 9,041.92

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Solution

The fourth proportional to 15,327.52, 21,159.84 and 9,041.92 is: 12,482.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.52 : 21,159.84 = 9,041.92 : x
  2. Step 2: Convert to fraction form
    15,327.52/21,159.84 = 9,041.92/x
  3. Step 3: Cross multiply
    15,327.52x = 21,159.84 × 9,041.92
  4. Step 4: Simplify right side
    15,327.52x = 191,325,580.49
  5. Step 5: Solve for x
    x = 191,325,580.49/15,327.52
  6. Step 6: Final answer
    x = 12,482.49

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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.