Home / 10,419.30-14,378.08-5,702.67

Finding the Fourth Proportional to 10,419.30, 14,378.08 and 5,702.67

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Solution

The fourth proportional to 10,419.30, 14,378.08 and 5,702.67 is: 7,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.30 : 14,378.08 = 5,702.67 : x
  2. Step 2: Convert to fraction form
    10,419.30/14,378.08 = 5,702.67/x
  3. Step 3: Cross multiply
    10,419.30x = 14,378.08 × 5,702.67
  4. Step 4: Simplify right side
    10,419.30x = 81,993,445.47
  5. Step 5: Solve for x
    x = 81,993,445.47/10,419.30
  6. Step 6: Final answer
    x = 7,869.38

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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.