Home / 18,926.58-26,117.72-10,971.40

Finding the Fourth Proportional to 18,926.58, 26,117.72 and 10,971.40

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Solution

The fourth proportional to 18,926.58, 26,117.72 and 10,971.40 is: 15,139.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.58 : 26,117.72 = 10,971.40 : x
  2. Step 2: Convert to fraction form
    18,926.58/26,117.72 = 10,971.40/x
  3. Step 3: Cross multiply
    18,926.58x = 26,117.72 × 10,971.40
  4. Step 4: Simplify right side
    18,926.58x = 286,547,953.21
  5. Step 5: Solve for x
    x = 286,547,953.21/18,926.58
  6. Step 6: Final answer
    x = 15,139.98

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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.