Home / 10,445.40-14,421.78-7,302.60

Finding the Fourth Proportional to 10,445.40, 14,421.78 and 7,302.60

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Solution

The fourth proportional to 10,445.40, 14,421.78 and 7,302.60 is: 10,082.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.40 : 14,421.78 = 7,302.60 : x
  2. Step 2: Convert to fraction form
    10,445.40/14,421.78 = 7,302.60/x
  3. Step 3: Cross multiply
    10,445.40x = 14,421.78 × 7,302.60
  4. Step 4: Simplify right side
    10,445.40x = 105,316,490.63
  5. Step 5: Solve for x
    x = 105,316,490.63/10,445.40
  6. Step 6: Final answer
    x = 10,082.57

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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.