Home / 15,242.64-21,009.68-10,205.08

Finding the Fourth Proportional to 15,242.64, 21,009.68 and 10,205.08

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Solution

The fourth proportional to 15,242.64, 21,009.68 and 10,205.08 is: 14,066.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.64 : 21,009.68 = 10,205.08 : x
  2. Step 2: Convert to fraction form
    15,242.64/21,009.68 = 10,205.08/x
  3. Step 3: Cross multiply
    15,242.64x = 21,009.68 × 10,205.08
  4. Step 4: Simplify right side
    15,242.64x = 214,405,465.17
  5. Step 5: Solve for x
    x = 214,405,465.17/15,242.64
  6. Step 6: Final answer
    x = 14,066.16

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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.