Home / 15,420.08-23,133.72-5,557.52

Finding the Fourth Proportional to 15,420.08, 23,133.72 and 5,557.52

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Solution

The fourth proportional to 15,420.08, 23,133.72 and 5,557.52 is: 8,337.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.08 : 23,133.72 = 5,557.52 : x
  2. Step 2: Convert to fraction form
    15,420.08/23,133.72 = 5,557.52/x
  3. Step 3: Cross multiply
    15,420.08x = 23,133.72 × 5,557.52
  4. Step 4: Simplify right side
    15,420.08x = 128,566,111.57
  5. Step 5: Solve for x
    x = 128,566,111.57/15,420.08
  6. Step 6: Final answer
    x = 8,337.58

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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.