Home / 15,678.59-23,520.18-7,359.45

Finding the Fourth Proportional to 15,678.59, 23,520.18 and 7,359.45

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Solution

The fourth proportional to 15,678.59, 23,520.18 and 7,359.45 is: 11,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.59 : 23,520.18 = 7,359.45 : x
  2. Step 2: Convert to fraction form
    15,678.59/23,520.18 = 7,359.45/x
  3. Step 3: Cross multiply
    15,678.59x = 23,520.18 × 7,359.45
  4. Step 4: Simplify right side
    15,678.59x = 173,095,588.70
  5. Step 5: Solve for x
    x = 173,095,588.70/15,678.59
  6. Step 6: Final answer
    x = 11,040.25

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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.