Home / 19,345.32-26,681.49-12,969.81

Finding the Fourth Proportional to 19,345.32, 26,681.49 and 12,969.81

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Solution

The fourth proportional to 19,345.32, 26,681.49 and 12,969.81 is: 17,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.32 : 26,681.49 = 12,969.81 : x
  2. Step 2: Convert to fraction form
    19,345.32/26,681.49 = 12,969.81/x
  3. Step 3: Cross multiply
    19,345.32x = 26,681.49 × 12,969.81
  4. Step 4: Simplify right side
    19,345.32x = 346,053,855.82
  5. Step 5: Solve for x
    x = 346,053,855.82/19,345.32
  6. Step 6: Final answer
    x = 17,888.25

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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.