Home / 10,895.04-15,038.38-6,420.23

Finding the Fourth Proportional to 10,895.04, 15,038.38 and 6,420.23

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Solution

The fourth proportional to 10,895.04, 15,038.38 and 6,420.23 is: 8,861.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,895.04 : 15,038.38 = 6,420.23 : x
  2. Step 2: Convert to fraction form
    10,895.04/15,038.38 = 6,420.23/x
  3. Step 3: Cross multiply
    10,895.04x = 15,038.38 × 6,420.23
  4. Step 4: Simplify right side
    10,895.04x = 96,549,767.18
  5. Step 5: Solve for x
    x = 96,549,767.18/10,895.04
  6. Step 6: Final answer
    x = 8,861.81

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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.