Home / 15,564.76-21,487.88-10,972.67

Finding the Fourth Proportional to 15,564.76, 21,487.88 and 10,972.67

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Solution

The fourth proportional to 15,564.76, 21,487.88 and 10,972.67 is: 15,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,564.76 : 21,487.88 = 10,972.67 : x
  2. Step 2: Convert to fraction form
    15,564.76/21,487.88 = 10,972.67/x
  3. Step 3: Cross multiply
    15,564.76x = 21,487.88 × 10,972.67
  4. Step 4: Simplify right side
    15,564.76x = 235,779,336.23
  5. Step 5: Solve for x
    x = 235,779,336.23/15,564.76
  6. Step 6: Final answer
    x = 15,148.28

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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.