Home / 19,117.78-26,386.75-10,622.81

Finding the Fourth Proportional to 19,117.78, 26,386.75 and 10,622.81

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Solution

The fourth proportional to 19,117.78, 26,386.75 and 10,622.81 is: 14,661.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.78 : 26,386.75 = 10,622.81 : x
  2. Step 2: Convert to fraction form
    19,117.78/26,386.75 = 10,622.81/x
  3. Step 3: Cross multiply
    19,117.78x = 26,386.75 × 10,622.81
  4. Step 4: Simplify right side
    19,117.78x = 280,301,471.18
  5. Step 5: Solve for x
    x = 280,301,471.18/19,117.78
  6. Step 6: Final answer
    x = 14,661.82

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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.