Home / 15,720.40-23,580.60-6,364.90

Finding the Fourth Proportional to 15,720.40, 23,580.60 and 6,364.90

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Solution

The fourth proportional to 15,720.40, 23,580.60 and 6,364.90 is: 9,547.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.40 : 23,580.60 = 6,364.90 : x
  2. Step 2: Convert to fraction form
    15,720.40/23,580.60 = 6,364.90/x
  3. Step 3: Cross multiply
    15,720.40x = 23,580.60 × 6,364.90
  4. Step 4: Simplify right side
    15,720.40x = 150,088,160.94
  5. Step 5: Solve for x
    x = 150,088,160.94/15,720.40
  6. Step 6: Final answer
    x = 9,547.35

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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.