Home / 10,386.60-15,579.90-9,263.40

Finding the Fourth Proportional to 10,386.60, 15,579.90 and 9,263.40

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Solution

The fourth proportional to 10,386.60, 15,579.90 and 9,263.40 is: 13,895.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.60 : 15,579.90 = 9,263.40 : x
  2. Step 2: Convert to fraction form
    10,386.60/15,579.90 = 9,263.40/x
  3. Step 3: Cross multiply
    10,386.60x = 15,579.90 × 9,263.40
  4. Step 4: Simplify right side
    10,386.60x = 144,322,845.66
  5. Step 5: Solve for x
    x = 144,322,845.66/10,386.60
  6. Step 6: Final answer
    x = 13,895.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.