Home / 15,590.02-21,507.38-9,298.76

Finding the Fourth Proportional to 15,590.02, 21,507.38 and 9,298.76

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Solution

The fourth proportional to 15,590.02, 21,507.38 and 9,298.76 is: 12,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.02 : 21,507.38 = 9,298.76 : x
  2. Step 2: Convert to fraction form
    15,590.02/21,507.38 = 9,298.76/x
  3. Step 3: Cross multiply
    15,590.02x = 21,507.38 × 9,298.76
  4. Step 4: Simplify right side
    15,590.02x = 199,991,964.85
  5. Step 5: Solve for x
    x = 199,991,964.85/15,590.02
  6. Step 6: Final answer
    x = 12,828.20

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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.