Home / 10,409.34-15,621.54-4,085.16

Finding the Fourth Proportional to 10,409.34, 15,621.54 and 4,085.16

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Solution

The fourth proportional to 10,409.34, 15,621.54 and 4,085.16 is: 6,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.34 : 15,621.54 = 4,085.16 : x
  2. Step 2: Convert to fraction form
    10,409.34/15,621.54 = 4,085.16/x
  3. Step 3: Cross multiply
    10,409.34x = 15,621.54 × 4,085.16
  4. Step 4: Simplify right side
    10,409.34x = 63,816,490.35
  5. Step 5: Solve for x
    x = 63,816,490.35/10,409.34
  6. Step 6: Final answer
    x = 6,130.70

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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.