Home / 7,909.90-10,916.37-4,374.25

Finding the Fourth Proportional to 7,909.90, 10,916.37 and 4,374.25

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Solution

The fourth proportional to 7,909.90, 10,916.37 and 4,374.25 is: 6,036.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.90 : 10,916.37 = 4,374.25 : x
  2. Step 2: Convert to fraction form
    7,909.90/10,916.37 = 4,374.25/x
  3. Step 3: Cross multiply
    7,909.90x = 10,916.37 × 4,374.25
  4. Step 4: Simplify right side
    7,909.90x = 47,750,931.47
  5. Step 5: Solve for x
    x = 47,750,931.47/7,909.90
  6. Step 6: Final answer
    x = 6,036.86

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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.