Home / 19,312.64-26,655.36-10,931.84

Finding the Fourth Proportional to 19,312.64, 26,655.36 and 10,931.84

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Solution

The fourth proportional to 19,312.64, 26,655.36 and 10,931.84 is: 15,088.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.64 : 26,655.36 = 10,931.84 : x
  2. Step 2: Convert to fraction form
    19,312.64/26,655.36 = 10,931.84/x
  3. Step 3: Cross multiply
    19,312.64x = 26,655.36 × 10,931.84
  4. Step 4: Simplify right side
    19,312.64x = 291,392,130.66
  5. Step 5: Solve for x
    x = 291,392,130.66/19,312.64
  6. Step 6: Final answer
    x = 15,088.16

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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.