Home / 15,490.08-23,218.87-7,581.69

Finding the Fourth Proportional to 15,490.08, 23,218.87 and 7,581.69

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Solution

The fourth proportional to 15,490.08, 23,218.87 and 7,581.69 is: 11,364.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,490.08 : 23,218.87 = 7,581.69 : x
  2. Step 2: Convert to fraction form
    15,490.08/23,218.87 = 7,581.69/x
  3. Step 3: Cross multiply
    15,490.08x = 23,218.87 × 7,581.69
  4. Step 4: Simplify right side
    15,490.08x = 176,038,274.49
  5. Step 5: Solve for x
    x = 176,038,274.49/15,490.08
  6. Step 6: Final answer
    x = 11,364.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.