Home / 15,526.46-21,428.34-9,154.46

Finding the Fourth Proportional to 15,526.46, 21,428.34 and 9,154.46

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Solution

The fourth proportional to 15,526.46, 21,428.34 and 9,154.46 is: 12,634.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.46 : 21,428.34 = 9,154.46 : x
  2. Step 2: Convert to fraction form
    15,526.46/21,428.34 = 9,154.46/x
  3. Step 3: Cross multiply
    15,526.46x = 21,428.34 × 9,154.46
  4. Step 4: Simplify right side
    15,526.46x = 196,164,881.40
  5. Step 5: Solve for x
    x = 196,164,881.40/15,526.46
  6. Step 6: Final answer
    x = 12,634.23

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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.