Home / 10,386.72-15,580.08-2,595.60

Finding the Fourth Proportional to 10,386.72, 15,580.08 and 2,595.60

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Solution

The fourth proportional to 10,386.72, 15,580.08 and 2,595.60 is: 3,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.72 : 15,580.08 = 2,595.60 : x
  2. Step 2: Convert to fraction form
    10,386.72/15,580.08 = 2,595.60/x
  3. Step 3: Cross multiply
    10,386.72x = 15,580.08 × 2,595.60
  4. Step 4: Simplify right side
    10,386.72x = 40,439,655.65
  5. Step 5: Solve for x
    x = 40,439,655.65/10,386.72
  6. Step 6: Final answer
    x = 3,893.40

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1.5x scale

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.