Home / 15,426.60-21,282.12-9,758.58

Finding the Fourth Proportional to 15,426.60, 21,282.12 and 9,758.58

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Solution

The fourth proportional to 15,426.60, 21,282.12 and 9,758.58 is: 13,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,426.60 : 21,282.12 = 9,758.58 : x
  2. Step 2: Convert to fraction form
    15,426.60/21,282.12 = 9,758.58/x
  3. Step 3: Cross multiply
    15,426.60x = 21,282.12 × 9,758.58
  4. Step 4: Simplify right side
    15,426.60x = 207,683,270.59
  5. Step 5: Solve for x
    x = 207,683,270.59/15,426.60
  6. Step 6: Final answer
    x = 13,462.67

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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.