Home / 18,513.36-25,549.08-10,130.64

Finding the Fourth Proportional to 18,513.36, 25,549.08 and 10,130.64

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Solution

The fourth proportional to 18,513.36, 25,549.08 and 10,130.64 is: 13,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.36 : 25,549.08 = 10,130.64 : x
  2. Step 2: Convert to fraction form
    18,513.36/25,549.08 = 10,130.64/x
  3. Step 3: Cross multiply
    18,513.36x = 25,549.08 × 10,130.64
  4. Step 4: Simplify right side
    18,513.36x = 258,828,531.81
  5. Step 5: Solve for x
    x = 258,828,531.81/18,513.36
  6. Step 6: Final answer
    x = 13,980.64

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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.