Home / 15,437.10-21,303.10-8,724.90

Finding the Fourth Proportional to 15,437.10, 21,303.10 and 8,724.90

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Solution

The fourth proportional to 15,437.10, 21,303.10 and 8,724.90 is: 12,040.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,437.10 : 21,303.10 = 8,724.90 : x
  2. Step 2: Convert to fraction form
    15,437.10/21,303.10 = 8,724.90/x
  3. Step 3: Cross multiply
    15,437.10x = 21,303.10 × 8,724.90
  4. Step 4: Simplify right side
    15,437.10x = 185,867,417.19
  5. Step 5: Solve for x
    x = 185,867,417.19/15,437.10
  6. Step 6: Final answer
    x = 12,040.31

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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.